'Cree's 'Haste'

When you activate this spell, dash as a free action, for all subsequent turns of it's duration you may perform one additional non-magic action per turn, This spell is incompatible with metamagic.

As a direct consequence of how this pumps energy through your form unconsciousness is supressed whilst the spell is in effect.

When the spell ends, you are Unconscious and cannot wake until the end of your next turn,  Lethargy seeps into your very bones.

Someone wanted 'Boot's of Haste' and I made this spell. Is it balanced? Maybe? IDFK.